Method of forming a relatively stable slip of silicon metal particles and yttrium containing particles

摘要: The method concerns forming a relatively stable slip of silicon metal particles and yttrium containing particles. In one embodiment, casting is formed in water. Particles sintering aid are added to the slip. compound which has at least some solubility water form Y +3 ions have high potential for totally flocculating into semiporous solid. A small amount fluoride salt contains aid. will produce anions when dissolved produced effective suppress flocculation by so that all remain suspension both an increased shelf life can be used cast articles having thick cross-section. pH maintained range from 7.5 9. Preferably, based on monovalent cation such as sodium or ammonia. steps adding may interchanged if desired, solution prior addition